What kind of plastic water cups are unqualified

What kind of plastic water cups are unqualified? Please see:
First, the labeling is unclear. A familiar friend asked you, don’t you always put the material first? Why can’t you express yourself clearly today? There are many kinds of materials for producing plastic water cups, such as: AS, PS, PP, PC, LDPE, PPSU, TRITAN, etc. The production materials of plastic water cups are also food grade. Are you confused? They are still food grade. Why did the editor’s previous article mention that some materials are harmful? Yes, this is related to the issue of unclear marking. Due to consumers’ lack of knowledge about plastic materials, they especially have little understanding of the contents represented by the numerical triangle symbols on the bottom of plastic water cups.

This causes consumers to think that the plastic water cups they buy are food-safe, but due to misuse, the water cups release harmful substances. For example: AS, PS, PC, LDPE and other materials cannot withstand high temperatures. Materials with water temperatures exceeding 70°C will release bisphenolamine (bisphenol A). Friends can confidently search for bisphenolamine online. Materials such as PP, PPSU, and TRITAN can withstand high temperatures and do not release bisphenolamine. Therefore, when consumers do not know the requirements for the use of materials, the most common question many consumers ask is whether the hot water container will deform. Deformation is only a change in shape and the release of harmful substances are two different things.

Most plastic water cups sold on the market will have a numerical triangle symbol on the bottom. Some responsible manufacturers will add the material name next to the numerical triangle symbol, such as: PP, etc. However, there are still some plastic water cups produced by unscrupulous merchants that either have no symbols or simply have wrong symbols. Therefore, I think unclear labeling is the first priority. At the same time, I also recommend that every plastic water cup manufacturer consider the health of consumers. In addition to the numerical triangle symbol and material name, there are also temperature-resistant labels and labels that release harmful substances. Tip, so that consumers can also buy plastic water cups that suit them according to their own purchasing habits.

Secondly, material. What we are talking about here is not the type of material, but the quality of the material itself. No matter what kind of food-grade plastic material is used, there are differences between new materials, old materials and recycled materials. The luster and effect of products using new materials cannot be achieved by using old materials or recycled materials. Old materials and recycled materials can be used under the condition of standardized management and strict quality control without pollution. This is also in line with the concept of reuse of environmentally friendly materials. However, there are some unscrupulous merchants who use old materials or recycled materials without standards, and the storage environment is extremely poor. They even crush the ends and tails of the previous products and use them as recycled materials. Please watch carefully when buying plastic water cups. If If you find that some plastic water cups have variegated impurities or a large amount of impurities, you must give up decisively and do not buy such water cups.

Third, the water cup function. When purchasing a plastic water cup, you should carefully check the functional accessories that come with the water cup, check whether the functions are complete, and ensure that the accessories are not damaged or fallen off. When purchasing a plastic water cup at the same time, it is best to use it according to your own usage habits and the functions of the water cup. Check whether your nose bumps against yours when drinking water, whether the gap in the handle is easy to grasp with your palm, etc. The editor has talked about sealing in many articles. If the water bottle you buy has poor sealing, this is a serious quality problem.

Finally, heat resistance. The editor has mentioned before that the heat resistance of plastic water cups is different, and some materials will release harmful substances due to high temperatures. Therefore, when purchasing plastic water cups, you must carefully understand the production materials and the characteristics of the materials. I would like to remind everyone here that some brands describe plastic as polymer material, which is actually a gimmick in the copywriting. Among them, water cups made of AS materials are not resistant to high temperatures, and they are even less resistant to temperature differences. High-temperature hot water or ice water will cause the material to crack.